./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/recursive-simple/id_i10_o10_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5d32a5d1-5ed9-432b-82c1-b4b336aee0d4/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5d32a5d1-5ed9-432b-82c1-b4b336aee0d4/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5d32a5d1-5ed9-432b-82c1-b4b336aee0d4/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5d32a5d1-5ed9-432b-82c1-b4b336aee0d4/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i10_o10_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5d32a5d1-5ed9-432b-82c1-b4b336aee0d4/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5d32a5d1-5ed9-432b-82c1-b4b336aee0d4/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0aae719d835771c4602eac7b24cfefa200f147c0 .................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 01:09:57,567 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 01:09:57,568 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 01:09:57,575 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 01:09:57,575 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 01:09:57,576 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 01:09:57,577 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 01:09:57,578 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 01:09:57,579 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 01:09:57,579 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 01:09:57,580 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 01:09:57,580 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 01:09:57,581 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 01:09:57,582 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 01:09:57,582 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 01:09:57,583 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 01:09:57,583 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 01:09:57,585 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 01:09:57,586 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 01:09:57,587 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 01:09:57,588 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 01:09:57,589 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 01:09:57,590 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 01:09:57,591 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 01:09:57,591 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 01:09:57,591 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 01:09:57,592 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 01:09:57,593 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 01:09:57,593 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 01:09:57,594 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 01:09:57,594 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 01:09:57,595 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 01:09:57,595 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 01:09:57,595 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 01:09:57,596 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 01:09:57,596 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 01:09:57,597 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5d32a5d1-5ed9-432b-82c1-b4b336aee0d4/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 01:09:57,605 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 01:09:57,605 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 01:09:57,606 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 01:09:57,606 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 01:09:57,606 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 01:09:57,606 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 01:09:57,607 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 01:09:57,607 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 01:09:57,607 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 01:09:57,607 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 01:09:57,607 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 01:09:57,607 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 01:09:57,607 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 01:09:57,608 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 01:09:57,608 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 01:09:57,608 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 01:09:57,608 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 01:09:57,608 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 01:09:57,608 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 01:09:57,608 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 01:09:57,608 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 01:09:57,608 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 01:09:57,609 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 01:09:57,609 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 01:09:57,609 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 01:09:57,609 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 01:09:57,609 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 01:09:57,609 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 01:09:57,609 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_5d32a5d1-5ed9-432b-82c1-b4b336aee0d4/bin-2019/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0aae719d835771c4602eac7b24cfefa200f147c0 [2018-11-10 01:09:57,631 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 01:09:57,639 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 01:09:57,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 01:09:57,642 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 01:09:57,642 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 01:09:57,643 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5d32a5d1-5ed9-432b-82c1-b4b336aee0d4/bin-2019/ukojak/../../sv-benchmarks/c/recursive-simple/id_i10_o10_false-unreach-call_true-termination.c [2018-11-10 01:09:57,679 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5d32a5d1-5ed9-432b-82c1-b4b336aee0d4/bin-2019/ukojak/data/aebcedff7/46bc94e4091c4202b05999addc341dc4/FLAGdc52a0b80 [2018-11-10 01:09:58,010 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 01:09:58,010 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5d32a5d1-5ed9-432b-82c1-b4b336aee0d4/sv-benchmarks/c/recursive-simple/id_i10_o10_false-unreach-call_true-termination.c [2018-11-10 01:09:58,015 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5d32a5d1-5ed9-432b-82c1-b4b336aee0d4/bin-2019/ukojak/data/aebcedff7/46bc94e4091c4202b05999addc341dc4/FLAGdc52a0b80 [2018-11-10 01:09:58,025 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5d32a5d1-5ed9-432b-82c1-b4b336aee0d4/bin-2019/ukojak/data/aebcedff7/46bc94e4091c4202b05999addc341dc4 [2018-11-10 01:09:58,028 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 01:09:58,029 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 01:09:58,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 01:09:58,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 01:09:58,033 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 01:09:58,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:09:58" (1/1) ... [2018-11-10 01:09:58,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46673125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:58, skipping insertion in model container [2018-11-10 01:09:58,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:09:58" (1/1) ... [2018-11-10 01:09:58,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 01:09:58,057 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 01:09:58,153 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 01:09:58,155 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 01:09:58,163 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 01:09:58,171 INFO L193 MainTranslator]: Completed translation [2018-11-10 01:09:58,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:58 WrapperNode [2018-11-10 01:09:58,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 01:09:58,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 01:09:58,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 01:09:58,172 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 01:09:58,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:58" (1/1) ... [2018-11-10 01:09:58,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:58" (1/1) ... [2018-11-10 01:09:58,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 01:09:58,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 01:09:58,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 01:09:58,190 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 01:09:58,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:58" (1/1) ... [2018-11-10 01:09:58,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:58" (1/1) ... [2018-11-10 01:09:58,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:58" (1/1) ... [2018-11-10 01:09:58,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:58" (1/1) ... [2018-11-10 01:09:58,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:58" (1/1) ... [2018-11-10 01:09:58,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:58" (1/1) ... [2018-11-10 01:09:58,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:58" (1/1) ... [2018-11-10 01:09:58,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 01:09:58,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 01:09:58,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 01:09:58,199 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 01:09:58,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5d32a5d1-5ed9-432b-82c1-b4b336aee0d4/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 01:09:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 01:09:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 01:09:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure id [2018-11-10 01:09:58,270 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2018-11-10 01:09:58,356 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 01:09:58,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:09:58 BoogieIcfgContainer [2018-11-10 01:09:58,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 01:09:58,357 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 01:09:58,357 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 01:09:58,364 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 01:09:58,364 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:09:58" (1/1) ... [2018-11-10 01:09:58,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:09:58,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 01:09:58,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-11-10 01:09:58,403 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-11-10 01:09:58,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 01:09:58,408 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 01:09:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:09:58,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:09:58,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 01:09:58,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 18 transitions. [2018-11-10 01:09:58,569 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-11-10 01:09:58,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 01:09:58,569 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 01:09:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:09:58,603 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 01:09:58,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 01:09:58,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 23 transitions. [2018-11-10 01:09:58,699 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2018-11-10 01:09:58,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 01:09:58,700 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 01:09:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:09:58,759 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-10 01:09:58,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 01:09:58,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 29 transitions. [2018-11-10 01:09:58,854 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2018-11-10 01:09:58,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 01:09:58,854 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 01:09:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:09:58,983 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-10 01:09:59,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 01:09:59,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 35 states and 56 transitions. [2018-11-10 01:09:59,718 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2018-11-10 01:09:59,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 01:09:59,719 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 01:09:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:09:59,786 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-10 01:10:00,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 01:10:00,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 38 states and 64 transitions. [2018-11-10 01:10:00,064 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 64 transitions. [2018-11-10 01:10:00,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 01:10:00,065 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 01:10:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:10:00,087 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-10 01:10:00,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 01:10:00,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 41 states and 74 transitions. [2018-11-10 01:10:00,291 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 74 transitions. [2018-11-10 01:10:00,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-10 01:10:00,292 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 01:10:00,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:10:00,475 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-11-10 01:10:01,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 01:10:01,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 57 states and 107 transitions. [2018-11-10 01:10:01,940 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 107 transitions. [2018-11-10 01:10:01,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-10 01:10:01,941 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 01:10:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:10:02,129 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-11-10 01:10:03,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 01:10:03,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 73 states and 137 transitions. [2018-11-10 01:10:03,598 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 137 transitions. [2018-11-10 01:10:03,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-10 01:10:03,600 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 01:10:03,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:10:03,829 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-11-10 01:10:05,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 01:10:05,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 89 states and 165 transitions. [2018-11-10 01:10:05,593 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 165 transitions. [2018-11-10 01:10:05,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-10 01:10:05,594 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 01:10:05,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:10:05,851 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-11-10 01:10:06,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 01:10:06,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 92 states and 174 transitions. [2018-11-10 01:10:06,414 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 174 transitions. [2018-11-10 01:10:06,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-10 01:10:06,415 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 01:10:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:10:06,442 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-11-10 01:10:06,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 01:10:06,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 95 states and 181 transitions. [2018-11-10 01:10:06,801 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 181 transitions. [2018-11-10 01:10:06,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-10 01:10:06,802 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 01:10:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:10:06,827 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-11-10 01:10:07,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 01:10:07,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 98 states and 188 transitions. [2018-11-10 01:10:07,210 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 188 transitions. [2018-11-10 01:10:07,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-10 01:10:07,211 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 01:10:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:10:07,233 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-11-10 01:10:07,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 01:10:07,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 101 states and 200 transitions. [2018-11-10 01:10:07,626 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 200 transitions. [2018-11-10 01:10:07,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-10 01:10:07,627 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 01:10:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:10:07,656 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-11-10 01:10:08,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 01:10:08,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 104 states and 215 transitions. [2018-11-10 01:10:08,044 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 215 transitions. [2018-11-10 01:10:08,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-10 01:10:08,045 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 01:10:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:10:08,163 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-11-10 01:10:08,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 01:10:08,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 107 states and 225 transitions. [2018-11-10 01:10:08,664 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 225 transitions. [2018-11-10 01:10:08,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-10 01:10:08,666 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 01:10:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:10:08,685 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-11-10 01:10:09,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 01:10:09,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 116 states and 255 transitions. [2018-11-10 01:10:09,938 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 255 transitions. [2018-11-10 01:10:09,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-10 01:10:09,939 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 01:10:09,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:10:09,959 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-11-10 01:10:10,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 01:10:10,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 119 states and 272 transitions. [2018-11-10 01:10:10,384 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 272 transitions. [2018-11-10 01:10:10,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-10 01:10:10,385 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 01:10:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 01:10:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 01:10:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 01:10:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 01:10:10,451 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 18 iterations. [2018-11-10 01:10:10,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 01:10:10 ImpRootNode [2018-11-10 01:10:10,481 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 01:10:10,481 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 01:10:10,481 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 01:10:10,482 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 01:10:10,482 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:09:58" (3/4) ... [2018-11-10 01:10:10,484 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 01:10:10,533 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5d32a5d1-5ed9-432b-82c1-b4b336aee0d4/bin-2019/ukojak/witness.graphml [2018-11-10 01:10:10,533 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 01:10:10,534 INFO L168 Benchmark]: Toolchain (without parser) took 12505.54 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 446.2 MB). Free memory was 959.1 MB in the beginning and 1.2 GB in the end (delta: -193.0 MB). Peak memory consumption was 253.2 MB. Max. memory is 11.5 GB. [2018-11-10 01:10:10,535 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 01:10:10,535 INFO L168 Benchmark]: CACSL2BoogieTranslator took 141.84 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 01:10:10,536 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.16 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 01:10:10,536 INFO L168 Benchmark]: Boogie Preprocessor took 8.41 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 01:10:10,537 INFO L168 Benchmark]: RCFGBuilder took 158.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -170.7 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-11-10 01:10:10,537 INFO L168 Benchmark]: CodeCheck took 12123.38 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 318.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -35.7 MB). Peak memory consumption was 282.6 MB. Max. memory is 11.5 GB. [2018-11-10 01:10:10,538 INFO L168 Benchmark]: Witness Printer took 52.51 ms. Allocated memory is still 1.5 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 01:10:10,541 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 1 error locations. UNSAFE Result, 12.0s OverallTime, 18 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 917504 SDtfs, 913420 SDslu, 1499160 SDs, 0 SdLazy, 6014010 SolverSat, 1658278 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9733 GetRequests, 9002 SyntacticMatches, 413 SemanticMatches, 318 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41559 ImplicationChecksByTransitivity, 10.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 816 NumberOfCodeBlocks, 816 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 730 ConstructedInterpolants, 0 QuantifiedInterpolants, 89848 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 1 PerfectInterpolantSequences, 1128/2256 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] int input = 10; [L11] CALL, EXPR id(input) VAL [\old(x)=10] [L5] COND FALSE !(x==0) VAL [\old(x)=10, x=10] [L6] CALL, EXPR id(x-1) VAL [\old(x)=9] [L5] COND FALSE !(x==0) VAL [\old(x)=9, x=9] [L6] CALL, EXPR id(x-1) VAL [\old(x)=8] [L5] COND FALSE !(x==0) VAL [\old(x)=8, x=8] [L6] CALL, EXPR id(x-1) VAL [\old(x)=7] [L5] COND FALSE !(x==0) VAL [\old(x)=7, x=7] [L6] CALL, EXPR id(x-1) VAL [\old(x)=6] [L5] COND FALSE !(x==0) VAL [\old(x)=6, x=6] [L6] CALL, EXPR id(x-1) VAL [\old(x)=5] [L5] COND FALSE !(x==0) VAL [\old(x)=5, x=5] [L6] CALL, EXPR id(x-1) VAL [\old(x)=4] [L5] COND FALSE !(x==0) VAL [\old(x)=4, x=4] [L6] CALL, EXPR id(x-1) VAL [\old(x)=3] [L5] COND FALSE !(x==0) VAL [\old(x)=3, x=3] [L6] CALL, EXPR id(x-1) VAL [\old(x)=2] [L5] COND FALSE !(x==0) VAL [\old(x)=2, x=2] [L6] CALL, EXPR id(x-1) VAL [\old(x)=1] [L5] COND FALSE !(x==0) VAL [\old(x)=1, x=1] [L6] CALL, EXPR id(x-1) VAL [\old(x)=0] [L5] COND TRUE x==0 [L5] RET return 0; VAL [\old(x)=0, \result=0, x=0] [L6] EXPR id(x-1) VAL [\old(x)=1, id(x-1)=0, x=1] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=2, id(x-1)=1, x=2] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=3, id(x-1)=2, x=3] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=4, id(x-1)=3, x=4] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=5, id(x-1)=4, x=5] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=6, id(x-1)=5, x=6] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=7, id(x-1)=6, x=7] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=8, id(x-1)=7, x=8] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=9, id(x-1)=8, x=9] [L6] RET return id(x-1) + 1; [L6] EXPR id(x-1) VAL [\old(x)=10, id(x-1)=9, x=10] [L6] RET return id(x-1) + 1; [L11] EXPR id(input) [L11] int result = id(input); [L12] COND TRUE result == 10 [L13] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 141.84 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.16 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 8.41 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 158.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -170.7 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * CodeCheck took 12123.38 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 318.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -35.7 MB). Peak memory consumption was 282.6 MB. Max. memory is 11.5 GB. * Witness Printer took 52.51 ms. Allocated memory is still 1.5 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...